.retro-box-shadow {
  box-shadow: inset -1px -1px #0a0a0a, inset 1px 1px #fff, inset -2px -2px #808080, inset 2px 2px #dfdfdf;
}

.glass-effect {
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.3);
}

.support-container {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  background-color: #f0f0f0;
  border: 1px solid #ddd;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.support-header {
  background-color: #0078D7;
  color: #fff;
  padding: 10px;
  border-bottom: 1px solid #0066b3;
}

.support-header h1 {
  margin: 0;
}

.support-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: space-between;
}

.support-nav li {
  margin-right: 20px;
}

.support-section {
 support: windows95/css/support.css;
支持
  supports
 Windows95
 CSS
 style
 sheet
 for
 the
 support
 page
 .
 It
 includes
 styles
 for
 the
 retro
 box
 shadow
 ,
 glass
 effect
 ,
 and
 other
 UI
 elements
 .

</style>